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Do-Gyeom Jeong on Muck Rack

Do-Gyeom Jeong

As seen in: Nature, Wiley Online Library
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Articles

Engineering the Coherent Phonon Transport in Polar Ferromagnetic Oxide Superlattices

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By In Hyeok Choi, Seung Jeong, Do-Gyeom Jeong, Ambrose Seo
| Wiley Online Library Verified
1 Introduction Quantized lattice vibration modes in crystalline solids, i.e., phonons, determine the thermodynamic properties and promote emergent functional opto-electronic and magnetic properties of materials by strongly coupling with charge and spin channels. Effective control of the phonons and their dynamics is crucial both for exploring the intriguing physical phenomena in solids and for facilitating their various applications.
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Covalent-bonding-induced strong phonon scattering in the atomically thin WSe2 layer

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By Young-Gwan Choi, Do-Gyeom Jeong, H. I. Ju, C. J. Roh
| Nature Verified
Abstract In nano-device applications using two-dimensional (2D) van der Waals materials, a heat dissipation through nano-scale interfaces can be a critical issue for optimizing device performances. By using a time-domain thermoreflectance measurement technique, we examine a cross-plane thermal transport through mono-layered (n = 1) and bi-layered (n = 2) WSe2 flakes which are sandwiched by top metal layers of Al, Au, and Ti and the bottom Al2O3 substrate.
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